Heel-seat-fitting machine



G MACHINE E. A. VWLLXAMS Filed Jan. 15. 1926 HEEL SEAT FITTIN ik? w IMarch 13. 1928.

March 13, 1928. 1,662,259

E. A. WILLIAMS HEEL SEAT FITTING MACHINE Filed Jan. 13. 1926 PatentedMar. 13, 1928.Y

ERNEST A. WILLIAMS, or CINCINNATI, o

HIC, ASS-IGNQR TO UNITED SHO-E MACHIN- ERYCORPORATION, OF PATERSON,NEW'JERSEY, A CORPORATIGN 0F 'NEV JERSEY.

HEEL-SEAT-FITTING MACHINE.

Application liedanuary 13, 1926. Serial No. 80,948.

This .intention relates to stock-cutting machines and is illustratedherein as embodied in a heel-seat fitting machine arranged to skivesurplus material from soles prior to their attachment to shoes.

In the manufacture of shoes to which Wood heels are to be attached it isusual to trim surplus stock from the heel-seat portionsof the soles ofthe shoes so as to reduce the area of the heel-seats and to provide theshoes with heel-seatsof a convex form correspond ing tothe concave orcupped attaching surfaces usually formed upon Wood heels. This heel-seatfitting operation for a long; time vwas performed by hand but of recentyears it has been increasingly performed by heelseat fitting machines.Most of these machines have been organized to perform the heel-seatfitting `operation after the soles have been attached to the shoes and`this today is the more generally used method, irrespective ofuhetherthe operation is performed h v machine or by hand. However, Ithere hasrecently been a tendency on the part of some shoe manufacturers toperform the heel-seat fitting operati-on prior to the attachment of thesoles to the shoes, this desire being based upon the possibility ofreducing the manufacturing cost if the operation is perfori'ned in thisWay.

lt is an object of the Vpresent invention to provide a heel-seat fittingmachine capable of operating upon soles pri-or to their at# tachment toshoes which will perform the Vheel-seat fitting' operation with'sufficient accuracy to satisfy the demands of manufacturers of thebetter grades of shoes, Which can be operated at a low cost, and Whichwill demand only a minimum of skill upon the part of the operator.

In accordance with the foregoing the illustinted machine is providedWith improved means arranged to deform the heel-seat portien of asole'so` that its central portion lies on one side and its peripheralportion lies' on the. other side ofthe surface to Which the heel-seat isto be trimmed. Then, by relative n'ioven'ient of the deformed sole and aslnivihgv .knife or cutter the sole is trimmed and beveled.(looperating` with the ski'vzing knife or cutter is another knifearranged to make a pair of heel breast receiving cuts at the forwardextremities of the trimming cut.

A feature yof .the yinvention comprises a heel-seat fitting machinerorganization. for example such as has just been outlined, including aholddown member or .finger larranged to deform or to assist ind-eforming `the stock and located 'during the fitting operation betweena porti-on of the stock and the skiving knife or cutter. As illustrated,the marginal portion of the heel-seat of the sole ,is engaged andsupported by a plate or platesformed `with a substantially U- shapedopening. A spring-pressed plunger is located somewhat below this openingin posit-ion to engage the centralportion of the heel-scat as the soleis deformed and to pre-r vent excessive deformation. The -holddoivnmember or finger is arranged tov clamp the work in opposition to 'theplunger and positively1 to hold its central portion out ofthe path ofmovement of the knife or cutter, this finger beingI carried by a supportoutof the path of movement ofthe knife or cutter. lilith the sole heldinthis manner theknife or cuttermoves from the 'rear forward to the heelbreast. lin, trinnningthe tivo-edges Lof the sole simult'afneously.l l fr` lVhile the invention is described y herein with particular referenceto a heel-seat fit-L tinev machine arranged to operateupon theheel-seats of unattached soles, it should be understood that'it is notlimited inits utility to such a machine.` In various of its laspects itis applicable to heel-seat fitting machines operating upon other thanunattlached soles and to cutting` machines for operating upon other Workpieces.

l lVith the above and other objects and fea` tures in view, theinvention vvilly nonT be de* scribed Withreference to the accompanyingdrawings and pointed out in the claims.

Inthe drawings, p

*Finn` lis a side elevation of a heel-seat fittingl machine embodyingthe present in'- vention arranged to operai e upon i'inattached soles; vy

Fig. 2 is a perspective view of the head the machine of Fig, 1 with'parts broken `avvay better to show the construction;

ating Fig. 3 is a perspective view illus the manner in which the heelseatportien of a sole is deformed `'prior to trimmiiig operation in theYniac'hine'of Figs. `l and 1 Fig. e is ya longitudinal section 'and Fig. 5 is a. transverse section illflst'r ating` the vtrimming operation5 A'and f Fig. tl is a perspective view of the reai portion of a solelitted by the illustrated machine.

The illustrated machine is provided with a column Ylll near the bottoniof which is journaled a power shaft l2 driven in any suitable manner,for example7 by a belt driven pulley 1l.. Upon the shaft 12 are aplurality of cams arranged to operate the various moving parts of themachine. Pulley 1l is connected to these rains by av single revolutionclutch which it is not necessary to describe in detail since it forms nopart ol the present invention, the clutch being controlled by a lreadlelli. ()n the upper end of the column lll is a head lo carrying a worksupport 2li, a horizontal slide .22 and an ap|n'o;iniately vertical,angula 'ly adjustable slide 2l. Mounted upon the slide .22 is a skiviugknil'e or cutter lo and a lever :2li fulcrumed at 2l) and carrying atits forward end a. presser roll Btl arranged to apply pressure to thework in front of the knife 2G and to move forward .so as to keep out ofthe way of the knife as the cut progresses. Carried also by the head 18of the machine is a forwardly extending bracket or arm l2 having pivotedat Stat its for 'ard end a rearwardly extending bar 3G, the depressedrear end of which is formed as an elongated holddown linger 38 arrangedto engage the upper surface of the heel-seat of a sole to be operatedupon and by pressure applied to linger 38 through roller 30 to force theupper surface of the central part of the heelseat below the path ofmovement of knife iti. As illustrated, linger 3S has a llat uppersurface for engagement with roller C30, a eonvex, work-engaging lowersurface and a rounded end. To support the peripheral portion of theheel-scat of the sole and cooperating with linger 3S to deforin thesole, are a pair of plates et() shaped to provide a U-shaped openingbeneath the heel'seat. These plates, as more fully shown in UnitedStates Letters Patent No. 1,307,285, lgranted June 1T, 1919, on anapplication tiled in the naines of Samuel J. lvientworth and FrederickH. Perry, are pivotally supported at the rear and may be swung toward orfrom each other under the control of a treadle, herein numbered 153,`front which they are operated through connections including a treadlerod all. Carried. by plates l0 are a pair of gage blocks t6 arranged toengage the edges of a, sole to be operated upon somewhat forward of theheel breast line and thereby to limit the movement of plates 40 towardeach other as treadle l2 is released. These blocks are located a shortdistance from the edges of plates 40 in accordance with the amount it isintended to reduce the heel-seat portion of the sole. Further forward onplates et() are a pair of springpressed plungers 4 8 arranged similarlyto engage the edges of the sole and yieldable to accommodate soles ofdili'erent shapes. As illustrated, these two plungers together present adivergent opening to facilitate the in troduction of soles between them."lhe lorward ends of plates lll rest upon the work support 20 whichserves to support the ball portions of the soles operated upon and isformed with a surface 5l) underlying and supporting the ends of plateslll so as to permit horizontal movement of plates ell).

Beneath the U-shaped openingl formed in plates l0 is a spring-pressedplunger hav ing an enlarged head arranged yieldingly to support thecent-ral portion of the heelseat so as to prevent undue distribiuion o'the sole. As illustrated, plunger .3:3 housed in a sleeve 5G, the lowerend of which is closed by an adjustable screw :35' .so that theresistance ol spring (ill to the depression of the plunger may beadjusted. A stop screw G2 is arranged to engage the under side of thehead 5l of the plunger positively to limit its downward movement. Thus,it will be seen that the central portion of the heetsea-t which islocated between linger ll and the head .51 of plunger fr. is Securelyclamped as roll :lo moves down into engagement with linger JS and isheld so clamped as roll 30 moves for `ard in lfi'ont of knife 2li duringthe trimming operation. As an added insurance against: .lisplacement olithe work under the action of the knife 2U linger 8S is provided on itsunder surface with a projection or spur (3l: (Figs. l1 and 5) arrangedto be forced into the material of the heel at so as to give linger 3S amore positive grip theroui'ion.

To make a pair of heel breast; receivingeuts at the forwardetatrcinities ol' the trininiing eut. l'or example as shown al (313 inFig. li, the `machine is provided with an adjustable knife illustratedas comprising a pair olI adjustable blades (in` carried by .slide 2ladjustable and operable from one ol the rams upon .shalt l2 in themanner set forth in said linited ritatcs Letters: lalenl No. lJllTjl. lnorder to prevent injury ol' kiiil`c-blade titl b v linger Zlil, thelatter may be notched as shown ati 'T5 in 4llig. :2.

Mean.`A l'or adjusting plates Alll lforwardly and rcarwari'llv inaccordance with the length to which the heel is to be trimmed may heprovided as shown in said United States Lettersl Patent No. 1,307.255,this adjusting means being controlled by a ha nd lever (3S ha ving aspring plunger movable into engageY ment with any one of' a series ol`holes To formed in a bracket T2. Means for operatin;r slide 22 to causethe reciprocalion olf knife Eil'. and for operating ioll 3l) to more itdown. thereby holding the central portion ol.' the worl: beneath thepath of movement of knife QG until knife 2G reaches the work and forthereafter moving roll 30 forward while lll) tlf)

loo

lltl

` takencare of by neaaase still in its lowered position, may also beprovided, just as described in sald United States Letters Patent No.1,307,285, except, of course, that roll 30 engages the upper surface offinger 38 instead of bearing directly on the work. 1

To facilitate the lengthwise presentation of 4the soles to .be loperatedupon, plates 40 are provided with a conspicuous mark, illustrated at inFigs. 2 and 3, positioned at right angles to the length of the soles tobe operated upon and extending transversely across the path of movementof knife 26. It is only necessary then, in order properly to positionthe soles to present them with their rear ends in alinement with line 8Oand with their shanks in engagement with gage blocks 46. Plungers 48bearing upon opposite edges of the sole will prevent any angularderangement while, `at the same time, yielding to compensate forvariations in the widths and shapes of the soles. As has been previouslystated, variations in the lengths to which the heel-seats kare to betrimmed are adjustment of lever 68.

In the operation of the machine treadle 42 is depressed to spread plates40 apart and the sole to be operated upon is placed upon plates 40 withits rea-r end in alinement with mark 8O and with its shank and forepartbetween gage-blocks 46 and plungers 48, respectively.V Treadle'42 isthen released, whereupon plates 40 move together until blocks 46 engagethe sole. Then, bar 36 and finger 38 are vdepressed so that finger38engages the sole and the machine is started by stepping upon tread'le16. This causes slide 22 to move forward and roll 30 carried by lever 28to move down, thereby pressing finger 38 forcibly against the sole anddeforming `the latter so that .finger '38 andthe upper surface of thecentral portion of the heel-seat are below the path of movement of knife26 while the peripheral portion of the heel-seat is above the path ofmovement of the knife, being supported by plates 40. Knife 26 movesforward, trimming and beveling the periphery of the heel-seat, operatingfirst upon the rear of the heel-seatl and then upon its ltwo .edgessimultaneously, and when it has almost reached roll 30, the latter alsomoves forward holding finger r*38 out of the way of the knife. `-Whenknife 26 has reached the heel-breast line, it is .withdrawn as also isroll 30. Then knife 468 is reciprocated to make the heel-breast out andto sever the peripheral chip from the sole, leaving the heel-seat asshown in F ig. 6.

Having thus described my invention, what I claim as new and desire tosecure 4by Letters Paten-t of the United :States is:

1. A stockfeutting machine having a-knife movable in a rectilinear path,and work-.de forming means varranged vpositively to hold different partsof the stock on opposite sides ydeformingl a w rk piece,-

of the path ofmovement of the knife, said deforming means including ahold-down member arranged during the` cutting operation to lie betweenthe knife and a portion of the stock'.

2. A stock-cutting machine having,v in combination, a knife,stock-deforming means, means `for causing relative movementof the knifeand the deforming means whereby the knife is caused to cut surplusmaterial from ,the deformed stock, said stock-deforming means includinga member positioned between the stock and the knife during the cuttingoperation positively to hold a portion ofthe stock away from the knife,and means travelling along` said member to hold said member out of theway of the knife. i

3; A stock-cutting machine having, in combination, a knife,stock-deforming means, means `for causing relative movement Y knife andthe deforming means whereby the knife is caused to cut surplus materialfrom kthe deformed stock, said stock-deforming means, including a rangedto assist in the'deformation of the stock and positioned between thestock and the knife during the cutting operation, and a roll arranged tomove along theiinger in front of the knifethereby holding the finger outof the way of the knife. l

4. A skiving machine having a yielding work-engaging member, a holddownmem` ber arranged to clamp a work piece against said yielding member, askiving` knife, and means for causing relative movement ofthe work piecethus held and the skiving knife to cause the knife to perform a skiving`operation upon the `work piece, memberbeing held stationary during theskiving operation between` the skiving knife and a portion ofthe workpiece.

`5..A skiving machine having means for a skiving knife, means forcausing relative movement of the work rpiece and the knife to cause theknife tok perform a `skiving operation `upon the work piece, said and aportion of the work piece, and means carried by said member arranged tobe forced into the .material of the work piece to provide positiveengagement of the holddown member with the Work piece. i

6. Af skiving machine having a vskiving knife, means for Causingrelativemovement of the work piece and ythe knife yto cause the fkuifeto perform a skiving operation upon the work piece. means for deforiningthe -work piece including a thin finger positioned during the skivingoperation between the skiving knife and a portion of the work piece `to'hold that portion ofthe work `piece from the knife, and a spur carriedby said of the thin holddown finger arsaid `hol-ddown deformingmeansincluding s a holddown member positionedduring the skivingoperation between the skivingknife finger arranged to be forced into thematerial of the Work piece to provide a positive engagement of thefinger with the Work piece.

7. A heel-seat fitting machine having means for supporting the edge ofthe heelseatportion of a sole, a knife, means for causing relativemovement of the sole and the knife to cause the knife to trim surplusstock from the periphery of the heelseat of the sole, and a holddoivnmember arranged to be held Istationary during the trimming operationbetween the knife and the central portion of the heel-seat of the soleand cooperating with the supporting means to deform the sole.

8. A heel-seat fitting machine having means 'for deforming the heelseatportion of a sole, a trimming knife having a cut ting edge arranged tooperate simultaneously on both edges of the heel-seat of the sole. saiddeforming means including a holddoun member arranged to be positionedduring substantially the entire trinnning uieration between the knifeand the central portion of the heel-seat of the sole` and means forcausing relative movement of the deformed sole and the knife in thedirection of the length of t-he sole to cause the knife to trim surplusstock simultaneously from the tivo edges of the periphery of theheelseat of the sole.

f). A l1eelseat fitting machine having a u'ork support, a cutterarranged to trim surplus material from the peripheral portion of theheel-seat of a sole carried by the Work support, and a holddown member,stationary during the trimming operation, having a eolepenetratingportion formed and arranged to engage the heel-seat of a .sole operatedupon securely to hold the sole against moven'ient as the trimming takesplace.

10. A heel-seat fitting machine having a work support with anapproximately U- shaped opening therein, arranged to engage one side ofand to support the peripheral portion of the heel-seat of a sole, anelongated finger arranged to engage the opposite side of the heel-scatof the sole supported by said work support, means movable lengthwise ofsaid iinger arranged to press the finger forcibly against the sole thussup ported, and a cutter movable with said lastnamed means to trimsurplus material from the periphery of the heel-seat of the sole.

11. heel-seat fitting machine having a n'ork support with anapproximately U- shaped opening therein, arranged to engage one side ofand support the peripheral portion of the heel-seat of a sole, anelongated finger arranged to engage the opposite side of the heel-seatof the sole supported by said work support, means movable lengthwise ofsaid finger arranged to press the finger foreibly against the sole, anda knife movable with said last-named means in a path clearing the sideof the finger away from the sole to trim surplus material from theperiphery of the heel-seat of the sole.

12. A heel-seat fitting machine having means for engaging one side ofand supporting the peripheral portion of the heel-seat of a sole, afinger engaging the opposite side of the central portion of theheel-seat of a sole thus supported, a knife movable lengthwise of thesole to trim surplus material from the periphery thereof, and meansarranged to more in front of the knife and engaging the finger to forcethe finger against the .sole and out of the path of movement of theknife.

12B. A. heel-scat means for engaging one side of and supporting theperipheral portion of the heel-seat of a sole, a finger engaging theopposite side of the central portion of the heel-seat of a sole thus`supported, a knife movable lengthwise olf the sole to trim surplusmaterial from the periphery thereof, and a roll movable in front ot theknife and engaging the linger to vforce the finger against the sole,betu'een the path of movement of the knife and the sole.

1.4. A heel-seat fitting machine having a work support with anapproxin'iatcly U- shaped opening therein arranged to engage one side ofand to support the peripheral portion of the heel-seat of a sole, amember arranged to engage the opposite side of the heel-seat of the solesupported by said wor r support. a spur carried by said member, meansfor forcing the member against the sole thereby causing the spur topenetrate, the sole so as to prevent lengthwise movement of the soleduring the fitting operation, and a cutter arranged to trim surplusmaterial from the periphery of the heel-seat of a sole thus held.

15. A heel-seat fitting machine having a work support with anapproximately U- shaped opening therein arranged to engage one side ofand to support the peripheral portion of the heelseat of a sole, amember arranged to engage the opposite side of the hecl-seat of the solosupported by said vl'ork support, a projection carried by said me1nber,a knife niovable lengthwise of the soleI to trim surplus material fromthe periphery of the heel-seat thereof, and means for foroing saidmember against the work thereby causing the projection to penetrate thesole so as to prevent lengthwise movement off the sole.

16. A heel-seat fitting machine having a cutter, means for causingrelative movement of the cutter and asole to cause the cutter to trimsurplus stock from the periphery of the heel-seat of the sole, aholddown member arranged to engage the central portion of the heelseatand to be positioned during the till) fitting machine having All lill)llt) trimming operation between the cutter and the central portion ofthe heel-seat of the soie, and a knife arranged to makea-heelbreast-receiving cut at the forward ends of the trimming` out.

17. A heel-seat fitting machine having means for trimming surplusmaterial from` the periphery of the heel-seat of a sole, and anelongated holddown finger arranged to assist in the deformation of thesole operated upon, said finger having a convex to be ERNEST A.WILLIAMS.

I have signed my 15

